Heater



L. C.. LUCAS. HEATER.

APPLICATION FILED JUNE a, 1918.

1,367,064. Patented Feb. 1, 1921.

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L. C. LUCAS. I

HEATER. APPLICATION -FILED JUNE 8, 1918.

1,367,064. Patented Feb. 1, 1921.

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HEATER. namcmou FILEDVIUIEB, 1918.

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Specification of Letters Patent.

Patented Feb. 1, 1921.

Application filed June a, rare. Serial naesaom To'aZZ whom it may concern:

a citizen of the United States, residing at.

Canton, in the county oi. Sitar-k and State of Uhio, have invented new and useful 1mprovements in Heaters, of which theitollowinga; is a specification.

This invention relates to new and useful improvements in heaters and the princlpal object of the invention is to provlde means tor securing a maximum amount of heat from a minimum amount of fuel.

Another object of the invention is to provide a device of this character which is simple and durable in construction, reliable and ethcient in operation and one which can be manufactured and placed upon the mar lret at a minimum cost;

The invention also consists in certain. other features oi construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illuev trated in the accompanying drawings and specifically pointed out in the appended claims.

In describing my invention in detail, reference will be had to the accompanying;

' drawings wherein lilre characters denote like or corresponding parts throughout the several views, and 111 which Figure .1 is a front view of the device ar ranged as a heater. 7

Fig. 2 is a transverse section.

Fig. 3 is an end view.

Fig. 4 is a perspective View of part of the heater.

Fig. 5 is a transverse view of a modification.

Fig.6 is a longitudinal sectional View through such modification.

't" is a horizontal section through another modification.

Fig. 8 is a transverse section through such modification.

Fig. 9 is a perspective view oi the burner.

Vertical sectional I th i w 1 represents the casing forming the exterior oi? the device. The top of the casing; is connected with the dis tributinp; pipes 2 leading; to the rooms or places to be heated. 3 is the air inlet connected with the bottom of the casing and this inlet may draw the air in from the ex terior of the building or from one of the lower rooms thereot. If desired this inlet may be connected with air forcing means for producin artificial draft through the system. I prefer to have the inlet connect with a passageway twhich extends under the entire floor of the casing. between said floor and the bottom o1 the casing and this passage-way communicates withs aid casin through a slot 5 in the floor of the casin ad acent the opposite wallof said CtlSll'liQ; so that the incoming air will pass underthe floor of the casing" and bedirected upwardly along the rear wall thereof. The inlet 3 forms a continuation of the passage-way. 6 represents the heater made in the form of a rectangular casing and located in the casing l. adgacent said slot. I

a As shown the heater is of substantially t ne same length as the casing so as to extend irom end to end thereof. This is ot considerably less width than the casino and an L-shaped battle plate 7 has one limb located above the top of the heater and its other limb extending downwardlyparallel with said heater with its endspaced a short distance froln the bottom of the casing. It wlllbeseen that this battle plate divide s the CZISIDQ, into an upper chamber and a lower chamber so that the incoming air will pass upwardly between the heater and the rear wall of the casing, over the top of the heater and down between theheater and the vertical lnnb ot the battle plate, through the space between the end of said limb and the bottom of the casinointo theupper chamber be heated in the upper chamber as this charm V the casing; so that it will project beyond the end of the casinmto receive the conducting pipe leading from a suitable source of fuel supply. As shown in said figures the burner consists of the tube 12 secured to the semi-c1rcular air duct 13. This air duct also projects beyond the end of the casing so that the air may flow into its open end. The moles of this duct are provided with the holes 14: so that the air may pass from said duct into the heater and thus aid in the 0mm bustion of the gases. The tube 12 is divided a the rollers 10.

in half by a horizontal partition 15 which is slotted so that the mixture of gas and air introduced into the compartment below the partition will flow through said slots into the upper compartment and the mixture will 6 a pair of heaters 6 is used and these heaters are separated by a batlie plate 7* extendin downwardly from the horizontal limb .o the L-shaped battle 7. These heaters are held in position by means of supporting bars 17 connected with the ends of the casing. Angle bars 7 form tracks for In this modification the outlet pipe 8 is forked with its forked ends engaging said heaters.

In this modification the incoming air will pass around the first heater through the space between the baffle 7 and the bottom of the casing, around the second heater and throughthe space below the vertical limb of the baffle 7/ into the upper chamber as before described. I

In the modification shown in Figs. 7 and V 8 the baflle plates 18 extend from the top to the bottom of the casing, and each plate has one of its ends spaced from the end of the casing so that the incoming air will be caused to flow in a horizontal path through said Casing. It will, of course be understood that the inlets and outlets are changed accordingly. In this case as in the modification just described the heaters themselves act as baffle plates tochange the direction of travel of the air currents.

It will be seen that the products bustion are so retarded in their through the heater that they will of compassage give up 'mo st of their heat to the walls of said heater and the surrounding air. The incoming air is also retarded in its passage around the heater'so that said air will be intensely heated in its slow movement around said heater and due to the fact that the air is distributed in a thin layer aroundthe heater all parts of it will be subjected to the heating action. In this way the maximum degree of heat is secured from the minimum amount of fuel consumed.

It will of course. be understood that the device may be made of any desired size. Said device may be made to be located in the basement of a building, as an ordinary furnace or it may be small enough to be used for heating a single room.

It is thought from the foregoing description that the advantages and novel features of my invention will be readily apparent.

I desire it to be understood that I ma make such changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claims.

What I claim is l. A device of the class described comprising a main casing having air inlet and outlet ports, a closed heater casing in said main casing acting as a ballle for the air current, a chimney pipe connected with the heater casing, a burner in said heater rasing and a baliie plate in said main easing cooperating with the heater casing for giving the air current a zig-zag path.

2. A device of the class described comprising a main casing having a slot in its bottom along one wall thereof, an air conduit under said bottom and extending from end to end of the casing and leading to said slot, a closed heater casing in the first mentioned casing extending from end to end of the same and having one side in alincment with the inner wail of the slot so as to force the air passing through the slot upwardly between itself and one wall of the main casing, a burner in said heater casing. a chimney pipe connected with said heater casing and an L-shaped baffle plate for directing the air across the top and along the inner side of the said heater casing.

In testimony whereof I aiiix my signature.

LAWRENCE C. LUCAS. 

